tag:blogger.com,1999:blog-19245896.post6009583772482935535..comments2024-03-29T11:12:54.229+11:00Comments on Submarine Matters & Australian Nuclear Weapons: Japan's Lithium-ion Battery Advantage, Expressions of Interest, SnorkelPete2http://www.blogger.com/profile/06134037393078707072noreply@blogger.comBlogger14125tag:blogger.com,1999:blog-19245896.post-60107866562091824082020-01-24T22:14:57.232+11:002020-01-24T22:14:57.232+11:00Interesting https://eiwaagroup.com/who-we-are/
&q...Interesting https://eiwaagroup.com/who-we-are/<br /><br />"About EIWAA<br /><br />EIWAA provides engineering services in the areas of Design, Inspection, Survey and Testing of oil and gas field equipment and structures.<br /><br />At EIWAA, we are committed to shaping customer’s priority by providing quick and customized engineering solutions – both offshore and onshore. We are uniquely positioned to deliver greater efficiency across project life cycles from concept to project delivery and beyond."Petehttps://www.blogger.com/profile/02624742078679760819noreply@blogger.comtag:blogger.com,1999:blog-19245896.post-84573810486932371802015-10-21T18:22:56.912+11:002015-10-21T18:22:56.912+11:00Hi S and jbmoore
Here's hoping that gradual p...Hi S and jbmoore<br /><br />Here's hoping that gradual progress and extensive testing of Lithium-ion Batteries (LIBs) on submarine will identify any remaining dangers. <br /><br />More specifically hopefully before LIBs are introduced on future Australian Soryus LIBs are tested on the one or two Japanese testbed submarines and on the next batch of Japanese Soryus.<br /><br />Regards<br /><br />PetePetehttps://www.blogger.com/profile/02624742078679760819noreply@blogger.comtag:blogger.com,1999:blog-19245896.post-91287111027903561512015-10-21T13:43:03.841+11:002015-10-21T13:43:03.841+11:00LiBs are a fire hazard. Subs are enclosed spaces a...LiBs are a fire hazard. Subs are enclosed spaces and fires are very deadly. The batteries can be made relatively fire safe, but is it safe enough for a sub? However, they have made advances in battery technology so the latest generation may charge easier and discharge better thereby making the threat of fire moot. If they can get the energy density of the aluminium battery on par with the Li battery, it would be a better alternative power storage device. <br /><br /><br />1.http://phys.org/news/2015-04-ultra-fast-aluminum-battery-safe-alternative.html<br />2.http://cleantechnica.com/2015/06/25/biosolar-claims-huge-lithium-ion-battery-technology-breakthrough-better-capacity-longer-life-lower-costs-reportedly/jbmoorehttps://www.blogger.com/profile/09751110750712243573noreply@blogger.comtag:blogger.com,1999:blog-19245896.post-74610818369646949992015-10-21T01:48:58.017+11:002015-10-21T01:48:58.017+11:00Hi Pete
Advantage of LIBs is to provide exceptio...Hi Pete <br /><br />Advantage of LIBs is to provide exceptional speed for conventional submarine which may reach nearly 30knot.<br /><br />Submerged speed is proportional to nearly square of output power of main motors for all speed range [1] in Soryu. But, reference [2] show that maximum submerged speed is proportional to cube of output power. So I assumed maximum speed (Vmax) of 29SS is proportional to cube root of total energy density of LIBs which will be at least 3 times higher than that LABs (maximum velocity 20knot/h) [3]. <br />Vmax = 20knot/h x 1.4 (cube root of 3) = 28knot/h. <br /><br />[1] NDS (Standard for Ministry of Defense, Japan) F8004-2, General rule for Submarine Electrical Propulsion System, Part 2: Submarine equipped Alternative Current Main motor, page 38, 4.2.2.1 Basic performance, you can find figures such as motor output 5900PS( motor ration 190/min: efficiency 92.0%), 4017PS(169/min,92.0%),397PS(76/min,NA), 56.8PS(39/min,73.0%) for submerged operation, these values correspond to 20knot/h, 18knot/h, -knot/h, 2knot/h.<br /><br />[2] https://books.google.com.au/books?id=MgJVCAAAQBAJ&pg=PT301&lpg=PT301&dq=hotel+load+submarine&source=bl&ots=SZhOvZ953t&sig=08sZCelPPiX-yadW1nkys-JAwWY&hl=en&sa=X&ved=0CCoQ6AEwAmoVChMIrMWn-IjRyAIVhZeUCh07xgOo#v=onepage&q=hotel%20load%20submarine&f=false<br /><br />[3] I did not consider effect of cavitation.<br /><br />Regards<br /><br />Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-19245896.post-81063925383442430392015-10-20T18:10:01.627+11:002015-10-20T18:10:01.627+11:00Hi S, MHalblaub and wispywood2344
My knowlege doe...Hi S, MHalblaub and wispywood2344<br /><br />My knowlege doesn't extend to assessing the performance measures of submarine diesels, motors and batteries - so I appreciate your expertise and comments :)<br /><br />Regards<br /><br />Pete Petehttps://www.blogger.com/profile/02624742078679760819noreply@blogger.comtag:blogger.com,1999:blog-19245896.post-5352422424948247282015-10-20T06:07:53.774+11:002015-10-20T06:07:53.774+11:00Hi Pete
I am expecting that energy densities of L...Hi Pete<br /><br />I am expecting that energy densities of LABs and LIBs are ca.40kWh and ca.120kWh, respectively. But, I highly appreciate wispywood2344 who tries to shed light on performance of LIBs mathematically.<br /><br />Regards<br />S<br />Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-19245896.post-39439519390269522432015-10-19T22:27:00.990+11:002015-10-19T22:27:00.990+11:00Math
34 kWh are about 120 seconds AK or maximum p...Math<br /><br />34 kWh are about 120 seconds AK or maximum power for a Type 214 electric motor.<br /><br />Regards,<br />MHalblaub<br />MHalblaubhttps://www.blogger.com/profile/14234020711635190127noreply@blogger.comtag:blogger.com,1999:blog-19245896.post-76741200013229466802015-10-16T15:42:48.528+11:002015-10-16T15:42:48.528+11:00Hi Nicky
On further thought TSS-3607 Fuyushio, co...Hi Nicky<br /><br />On further thought TSS-3607 Fuyushio, converted to "Training" submarine on 15 March 2011, may also be performing as a Lithium-ion Battery testbed as well as TSS-3601 Asashio (or instead of it).<br /><br />If Lithium-ion Battery submarines can acheive a range of 2,900 nautical miles fully submerged they could cross the Atlantic though not the Pacific. Crossing the South China Sea would be nice!<br /><br />Regards<br /><br />PetePetehttps://www.blogger.com/profile/02624742078679760819noreply@blogger.comtag:blogger.com,1999:blog-19245896.post-15593350646387662542015-10-16T15:05:02.003+11:002015-10-16T15:05:02.003+11:00Hi Nicky
There has been no operational testing of...Hi Nicky<br /><br />There has been no operational testing of Lithium-ion Batteries on submarines that I know of.<br /><br />However I suspect that Japanese testbed submarine TSS-3601 Asashio which was previously used to test Stirling AIP may well be now testing Lithium-ion Batteries.<br /><br />If S's approximate calculations are correct a future submarine (operating by 2025) on Lithium-ion Batteries may be able to stay completely submerged for 30 days at 4 knots permitting a range of 2,900 nautical miles. See 28SS at http://gentleseas.blogspot.com.au/2015/04/soryus-on-lithium-ion-batteries.html<br /><br />Regards<br /><br />PetePetehttps://www.blogger.com/profile/02624742078679760819noreply@blogger.comtag:blogger.com,1999:blog-19245896.post-47530470811609739772015-10-16T14:43:36.377+11:002015-10-16T14:43:36.377+11:00Thanks S
I have added your comment to the text.
...Thanks S<br /><br />I have added your comment to the text.<br /><br />Regards<br /><br />PetePetehttps://www.blogger.com/profile/02624742078679760819noreply@blogger.comtag:blogger.com,1999:blog-19245896.post-9595615132271773392015-10-16T14:33:03.461+11:002015-10-16T14:33:03.461+11:00Hi wispywood2344
Thanks. I have placed a diagram ...Hi wispywood2344<br /><br />Thanks. I have placed a diagram from http://blog.livedoor.jp/wispywood2344/archives/54874167.html in the text. All very expert technical :)<br /><br />I have also mentioned http://blog.livedoor.jp/wispywood2344/archives/55055062.html<br /><br />Regards<br /><br />PetePetehttps://www.blogger.com/profile/02624742078679760819noreply@blogger.comtag:blogger.com,1999:blog-19245896.post-90887739377684332402015-10-16T04:14:47.533+11:002015-10-16T04:14:47.533+11:00Hi Pete,
How reliable are the Batteries on SSK Sub...Hi Pete,<br />How reliable are the Batteries on SSK Submarines. Can they cross the Atlantic and Pacific on batteries.Nickyhttps://www.blogger.com/profile/15318590507921043958noreply@blogger.comtag:blogger.com,1999:blog-19245896.post-56760228030622500672015-10-16T00:42:12.741+11:002015-10-16T00:42:12.741+11:00
Hi Pete
NDS Z 2004 C (Non-destructive inspection...<br />Hi Pete<br /><br />NDS Z 2004 C (Non-destructive inspection of weld zone of war ship steel and classification of its result) is commonly adopted steels including NS80 and NS110. NDIS0601 or JIS Z 2305:2013 (Non-destructive testing-Qualification and certification of NDT personnel) is adopted for qualification of inspector. ISO 9712:2014 which is ISO version of JIS Z 2305:2013 will be adopted for Aussie inspector.<br /><br />Regards<br />S<br /><br />Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-19245896.post-91303487161989212062015-10-15T23:12:21.502+11:002015-10-15T23:12:21.502+11:00Hi Pete.
I had estimated electric power capacity ...Hi Pete.<br /><br />I had estimated electric power capacity of TRDI-developed-LIB and JMSDF-conventional-LAB on my blog before.<br />http://blog.livedoor.jp/wispywood2344/archives/54874167.html<br />http://blog.livedoor.jp/wispywood2344/archives/55055062.html<br /><br />The results are as follows;<br />LIB unit (W444-D431-H1647[mm]/770kg) : ca.34kWh (at 100% state of charge)<br />LAB unit (W444-D432-H1665[mm]/880kg) : ca.20kWh (at 100% state of charge)<br /><br />For your information.<br /><br />Regards.<br />wispywood2344wispywood2344http://blog.livedoor.jp/wispywood2344/noreply@blogger.com